GB536934A - Improvements in vacuum pumps - Google Patents

Improvements in vacuum pumps

Info

Publication number
GB536934A
GB536934A GB633740A GB633740A GB536934A GB 536934 A GB536934 A GB 536934A GB 633740 A GB633740 A GB 633740A GB 633740 A GB633740 A GB 633740A GB 536934 A GB536934 A GB 536934A
Authority
GB
United Kingdom
Prior art keywords
vane
ports
series
spring
pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB633740A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB633740A priority Critical patent/GB536934A/en
Publication of GB536934A publication Critical patent/GB536934A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

Abstract

536,934. Rotary vacuum pumps. BEACH, E. J. April 8, 1940, No. 6337. [Class 110 (ii)] The diametrical, vane 13 is divided into two equal parts, Fig. 4, separated by a shim 23 which can be replaced by a thicker one to compensate for wear. Packing strips 65 in the rotor and vane end packings 22 are subject to the fluid pressure in front of the vane admitted by ports 67, 62. An arcuate inlet port 17 is cut in the stator end wall and co-operates with ports 16 in the vane which communicate with chambers 14 and a series of oblique ports 15. Delivery is through two spring-pressed valves 40, 41 in series. The valve 40, Fig. 5, comprises a valve plate 48, guided by spring-pressed pins 49, and a plate 53 of thin metal guided by pins 53<1>. One end of the working chamber is provided by a disc backed by lubricating oil at atmospheric pressure. Any pressure above atmospheric in the working-chamber displaces the disc and is thereby relieved.
GB633740A 1940-04-08 1940-04-08 Improvements in vacuum pumps Expired GB536934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB633740A GB536934A (en) 1940-04-08 1940-04-08 Improvements in vacuum pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB633740A GB536934A (en) 1940-04-08 1940-04-08 Improvements in vacuum pumps

Publications (1)

Publication Number Publication Date
GB536934A true GB536934A (en) 1941-05-30

Family

ID=9812645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB633740A Expired GB536934A (en) 1940-04-08 1940-04-08 Improvements in vacuum pumps

Country Status (1)

Country Link
GB (1) GB536934A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355181A1 (en) * 1976-06-15 1978-01-13 Barmag Barmer Maschf VANE VACUUM PUMP
WO1989002533A2 (en) * 1987-09-18 1989-03-23 Macleod Mitchell & Associates Ltd Rotary hydraulic machines
ITTO20131083A1 (en) * 2013-12-30 2015-07-01 Vhit Spa ROTARY PUMP WITH SAFETY VALVE AND OPERATING METHOD

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355181A1 (en) * 1976-06-15 1978-01-13 Barmag Barmer Maschf VANE VACUUM PUMP
WO1989002533A2 (en) * 1987-09-18 1989-03-23 Macleod Mitchell & Associates Ltd Rotary hydraulic machines
WO1989002533A3 (en) * 1987-09-18 1989-04-20 Macleod Mitchell & Associates Rotary hydraulic machines
ITTO20131083A1 (en) * 2013-12-30 2015-07-01 Vhit Spa ROTARY PUMP WITH SAFETY VALVE AND OPERATING METHOD
WO2015101904A1 (en) * 2013-12-30 2015-07-09 Vhit S.P.A. Rotary pump with safety valve and operating method thereof

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